CA ON00419 POC
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Fonds
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n.d., 1914-1920
Fonds consists of three record books. Two of these are ledgers that date from the period that Thomas was the manager of Consolidated Optical Co. They offer a rare glimpse of daily operations of a Canadian instrument making firm. The ledgers have records of purchases, contacts, receipts, and materials dating from 1914 to 1920. The other record book is a surveying class notebook that is undated.
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